1 /* 2 * Copyright 2004-2011 Haiku, Inc. All Rights Reserved. 3 * Distributed under the terms of the MIT License. 4 */ 5 #ifndef _UNISTD_H_ 6 #define _UNISTD_H_ 7 8 9 #include <null.h> 10 #include <sys/types.h> 11 12 13 /* access modes */ 14 #define R_OK 4 15 #define W_OK 2 16 #define X_OK 1 17 #define F_OK 0 18 19 /* standard file descriptors */ 20 #define STDIN_FILENO 0 21 #define STDOUT_FILENO 1 22 #define STDERR_FILENO 2 23 24 /* function arguments needed by lockf() */ 25 #define F_ULOCK 0 /* unlock locked sections */ 26 #define F_LOCK 1 /* lock a section for exclusive use */ 27 #define F_TLOCK 2 /* test and lock a section for exclusive use */ 28 #define F_TEST 3 /* test a section for locks by other processes */ 29 30 /* POSIX version support */ 31 #define _POSIX_VERSION (199009L) /* TODO: Update! */ 32 33 #define _POSIX_CHOWN_RESTRICTED 1 34 #define _POSIX_JOB_CONTROL 1 35 #define _POSIX_NO_TRUNC 0 36 #define _POSIX_SAVED_IDS 1 37 #define _POSIX_VDISABLE ((unsigned char)-2) 38 /* TODO: Check this! */ 39 /* TODO: Update these to the current POSIX version! Ideally after actually 40 supporting the features. */ 41 #define _POSIX_SEMAPHORES (200112L) 42 #define _POSIX_THREADS (200112L) 43 #define _POSIX_MAPPED_FILES (200809L) 44 #define _POSIX_THREAD_PROCESS_SHARED (200809L) 45 #define _POSIX_THREAD_ATTR_STACKADDR (-1) /* currently unsupported */ 46 #define _POSIX_THREAD_ATTR_STACKSIZE (200809L) 47 #define _POSIX_THREAD_PRIORITY_SCHEDULING (-1) /* currently unsupported */ 48 #define _POSIX_REALTIME_SIGNALS (200809L) 49 #define _POSIX_MEMORY_PROTECTION (200809L) 50 #define _POSIX_MONOTONIC_CLOCK (200809L) 51 #define _POSIX_TIMERS (200809L) 52 #define _POSIX_CPUTIME (200809L) 53 #define _POSIX_THREAD_CPUTIME (200809L) 54 55 56 /* pathconf() constants */ 57 /* BeOS supported values, do not touch */ 58 #define _PC_CHOWN_RESTRICTED 1 59 #define _PC_MAX_CANON 2 60 #define _PC_MAX_INPUT 3 61 #define _PC_NAME_MAX 4 62 #define _PC_NO_TRUNC 5 63 #define _PC_PATH_MAX 6 64 #define _PC_PIPE_BUF 7 65 #define _PC_VDISABLE 8 66 #define _PC_LINK_MAX 25 67 /* new values */ 68 #define _PC_SYNC_IO 26 69 #define _PC_ASYNC_IO 27 70 #define _PC_PRIO_IO 28 71 #define _PC_SOCK_MAXBUF 29 72 #define _PC_FILESIZEBITS 30 73 #define _PC_REC_INCR_XFER_SIZE 31 74 #define _PC_REC_MAX_XFER_SIZE 32 75 #define _PC_REC_MIN_XFER_SIZE 33 76 #define _PC_REC_XFER_ALIGN 34 77 #define _PC_ALLOC_SIZE_MIN 35 78 #define _PC_SYMLINK_MAX 36 79 #define _PC_2_SYMLINKS 37 80 #define _PC_XATTR_EXISTS 38 81 #define _PC_XATTR_ENABLED 39 82 83 /* sysconf() constants */ 84 /* BeOS supported values, do not touch */ 85 #define _SC_ARG_MAX 15 86 #define _SC_CHILD_MAX 16 87 #define _SC_CLK_TCK 17 88 #define _SC_JOB_CONTROL 18 89 #define _SC_NGROUPS_MAX 19 90 #define _SC_OPEN_MAX 20 91 #define _SC_SAVED_IDS 21 92 #define _SC_STREAM_MAX 22 93 #define _SC_TZNAME_MAX 23 94 #define _SC_VERSION 24 95 /* new values */ 96 #define _SC_GETGR_R_SIZE_MAX 25 97 #define _SC_GETPW_R_SIZE_MAX 26 98 #define _SC_PAGE_SIZE 27 99 #define _SC_PAGESIZE _SC_PAGE_SIZE 100 #define _SC_SEM_NSEMS_MAX 28 101 #define _SC_SEM_VALUE_MAX 29 102 #define _SC_SEMAPHORES 30 103 #define _SC_THREADS 31 104 /* TODO: check */ 105 #define _SC_IOV_MAX 32 106 #define _SC_UIO_MAXIOV _SC_IOV_MAX 107 #define _SC_NPROCESSORS_MAX 33 108 #define _SC_NPROCESSORS_CONF 34 109 #define _SC_NPROCESSORS_ONLN 35 110 #define _SC_CPUID_MAX 36 111 #define _SC_ATEXIT_MAX 37 112 #define _SC_PASS_MAX 39 113 #define _SC_PHYS_PAGES 40 114 #define _SC_AVPHYS_PAGES 41 115 #define _SC_PIPE 42 116 #define _SC_SELECT 43 117 #define _SC_POLL 44 118 #define _SC_MAPPED_FILES 45 119 #define _SC_THREAD_PROCESS_SHARED 46 120 #define _SC_THREAD_STACK_MIN 47 121 #define _SC_THREAD_ATTR_STACKADDR 48 122 #define _SC_THREAD_ATTR_STACKSIZE 49 123 #define _SC_THREAD_PRIORITY_SCHEDULING 50 124 #define _SC_REALTIME_SIGNALS 51 125 #define _SC_MEMORY_PROTECTION 52 126 #define _SC_SIGQUEUE_MAX 53 127 #define _SC_RTSIG_MAX 54 128 #define _SC_MONOTONIC_CLOCK 55 129 #define _SC_DELAYTIMER_MAX 56 130 #define _SC_TIMER_MAX 57 131 #define _SC_TIMERS 58 132 #define _SC_CPUTIME 59 133 #define _SC_THREAD_CPUTIME 60 134 135 136 /* confstr() constants */ 137 #define _CS_PATH 1 138 139 /* lseek() constants */ 140 #ifndef SEEK_SET 141 # define SEEK_SET 0 142 #endif 143 #ifndef SEEK_CUR 144 # define SEEK_CUR 1 145 #endif 146 #ifndef SEEK_END 147 # define SEEK_END 2 148 #endif 149 150 151 #ifdef __cplusplus 152 extern "C" { 153 #endif 154 155 /* file functions */ 156 extern int access(const char *path, int accessMode); 157 extern int faccessat(int fd, const char *path, int accessMode, int flag); 158 159 extern int chdir(const char *path); 160 extern int fchdir(int fd); 161 extern char *getcwd(char *buffer, size_t size); 162 163 extern int pipe(int fildes[2]); 164 extern int dup(int fd); 165 extern int dup2(int fd1, int fd2); 166 extern int close(int fd); 167 extern int link(const char *toPath, const char *path); 168 extern int linkat(int toFD, const char *toPath, int pathFD, 169 const char *path, int flag); 170 extern int unlink(const char *name); 171 extern int unlinkat(int fd, const char *path, int flag); 172 extern int rmdir(const char *path); 173 174 extern ssize_t readlink(const char *path, char *buffer, size_t bufferSize); 175 extern ssize_t readlinkat(int fd, const char *path, char *buffer, 176 size_t bufferSize); 177 extern int symlink(const char *toPath, const char *symlinkPath); 178 extern int symlinkat(const char *toPath, int fd, const char *symlinkPath); 179 180 extern int ftruncate(int fd, off_t newSize); 181 extern int truncate(const char *path, off_t newSize); 182 extern int ioctl(int fd, unsigned long op, ...); 183 184 extern ssize_t read(int fd, void *buffer, size_t count); 185 extern ssize_t read_pos(int fd, off_t pos, void *buffer, size_t count); 186 extern ssize_t pread(int fd, void *buffer, size_t count, off_t pos); 187 extern ssize_t write(int fd, const void *buffer, size_t count); 188 extern ssize_t write_pos(int fd, off_t pos, const void *buffer,size_t count); 189 extern ssize_t pwrite(int fd, const void *buffer, size_t count, off_t pos); 190 extern off_t lseek(int fd, off_t offset, int whence); 191 192 extern int sync(void); 193 extern int fsync(int fd); 194 195 extern int chown(const char *path, uid_t owner, gid_t group); 196 extern int fchown(int fd, uid_t owner, gid_t group); 197 extern int lchown(const char *path, uid_t owner, gid_t group); 198 extern int fchownat(int fd, const char *path, uid_t owner, gid_t group, 199 int flag); 200 201 extern int mknod(const char *name, mode_t mode, dev_t dev); 202 extern int mknodat(int fd, const char *name, mode_t mode, dev_t dev); 203 204 extern int getpagesize(void); 205 extern int getdtablesize(void); 206 extern long sysconf(int name); 207 extern long fpathconf(int fd, int name); 208 extern long pathconf(const char *path, int name); 209 extern size_t confstr(int name, char *buf, size_t len); 210 extern int lockf(int fd, int function, off_t size); 211 212 /* process functions */ 213 extern pid_t fork(void); 214 extern pid_t vfork(void); 215 extern int execve(const char *path, char * const argv[], char * const envp[]); 216 extern int execl(const char *path, const char *arg, ...); 217 extern int execv(const char *path, char *const *argv); 218 extern int execlp(const char *file, const char *arg, ...); 219 extern int execle(const char *path, const char *arg , ... /*, char **envp */); 220 extern int exect(const char *path, char *const *argv); 221 extern int execvp(const char *file, char *const *argv); 222 223 extern void _exit(int status); 224 225 extern pid_t tcgetpgrp(int fd); 226 extern int tcsetpgrp(int fd, pid_t pgrpid); 227 extern void *sbrk(long incr); 228 229 extern unsigned int alarm(unsigned int seconds); 230 extern useconds_t ualarm(useconds_t microSeconds, useconds_t interval); 231 extern unsigned int sleep(unsigned int seconds); 232 extern int usleep(unsigned int microSeconds); 233 extern int pause(void); 234 235 /* process */ 236 extern pid_t getpid(void); 237 extern pid_t getpgrp(void); 238 extern pid_t getppid(void); 239 extern pid_t getsid(pid_t pid); 240 extern pid_t getpgid(pid_t pid); 241 242 extern pid_t setsid(void); 243 extern int setpgid(pid_t pid, pid_t pgid); 244 extern pid_t setpgrp(void); 245 246 extern int chroot(const char *path); 247 248 /* access permissions */ 249 extern gid_t getegid(void); 250 extern uid_t geteuid(void); 251 extern gid_t getgid(void); 252 extern uid_t getuid(void); 253 254 extern int setgid(gid_t gid); 255 extern int setuid(uid_t uid); 256 extern int setegid(gid_t gid); 257 extern int seteuid(uid_t uid); 258 extern int setregid(gid_t rgid, gid_t egid); 259 extern int setreuid(uid_t ruid, uid_t euid); 260 261 extern int getgrouplist(const char* user, gid_t baseGroup, 262 gid_t* groupList, int* groupCount); 263 extern int getgroups(int groupCount, gid_t groupList[]); 264 extern int initgroups(const char* user, gid_t baseGroup); 265 extern int setgroups(int groupCount, const gid_t* groupList); 266 267 extern char *getlogin(void); 268 extern int getlogin_r(char *name, size_t nameSize); 269 270 /* host name */ 271 extern int sethostname(const char *hostName, size_t nameSize); 272 extern int gethostname(char *hostName, size_t nameSize); 273 274 /* tty */ 275 extern int isatty(int fd); 276 extern char *ttyname(int fd); 277 extern int ttyname_r(int fd, char *buffer, size_t bufferSize); 278 279 /* misc */ 280 extern char *crypt(const char *key, const char *salt); 281 extern void encrypt(char block[64], int edflag); 282 extern int getopt(int argc, char *const *argv, const char *shortOpts); 283 extern void swab(const void *src, void *dest, ssize_t nbytes); 284 285 /* getopt() related external variables */ 286 extern char *optarg; 287 extern int optind, opterr, optopt; 288 289 #ifdef __cplusplus 290 } 291 #endif 292 293 #endif /* _UNISTD_H_ */ 294